utils/ogl/samples/ogledit/view.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        view.cpp
   3 // Purpose:     Implements view functionality in OGLEdit
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     12/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 // #pragma implementation
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include <wx/wxprec.h>
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include <wx/wx.h>
  25 #endif
  26
  27 #include <wx/colordlg.h>
  28
  29 #if !USE_DOC_VIEW_ARCHITECTURE
  30 #error You must set wxUSE_DOC_VIEW_ARCHITECTURE to 1 in wx_setup.h!
  31 #endif
  32
  33 #include "ogledit.h"
  34 #include "doc.h"
  35 #include "view.h"
  36 #include "palette.h"
  37
  38 IMPLEMENT_DYNAMIC_CLASS(DiagramView, wxView)
  39
  40 BEGIN_EVENT_TABLE(DiagramView, wxView)
  41     EVT_MENU(OGLEDIT_CUT, DiagramView::OnCut)
  42     EVT_MENU(OGLEDIT_CHANGE_BACKGROUND_COLOUR, DiagramView::OnChangeBackgroundColour)
  43     EVT_MENU(OGLEDIT_EDIT_LABEL, DiagramView::OnEditLabel)
  44 END_EVENT_TABLE()
  45
  46 // What to do when a view is created. Creates actual
  47 // windows for displaying the view.
  48 bool DiagramView::OnCreate(wxDocument *doc, long flags)
  49 {
  50   frame = GetMainFrame();
  51   canvas = GetMainFrame()->canvas;
  52   canvas->view = this;
  53
  54   SetFrame(frame);
  55   Activate(TRUE);
  56
  57   // Initialize the edit menu Undo and Redo items
  58   doc->GetCommandProcessor()->SetEditMenu(((MyFrame *)frame)->editMenu);
  59   doc->GetCommandProcessor()->Initialize();
  60
  61   wxShapeCanvas *shapeCanvas = (wxShapeCanvas *)canvas;
  62   DiagramDocument *diagramDoc = (DiagramDocument *)doc;
  63   shapeCanvas->SetDiagram(diagramDoc->GetDiagram());
  64   diagramDoc->GetDiagram()->SetCanvas(shapeCanvas);
  65
  66   return TRUE;
  67 }
  68
  69 // Sneakily gets used for default print/preview
  70 // as well as drawing on the screen.
  71 void DiagramView::OnDraw(wxDC *dc)
  72 {
  73 }
  74
  75 void DiagramView::OnUpdate(wxView *sender, wxObject *hint)
  76 {
  77   if (canvas)
  78     canvas->Refresh();
  79 }
  80
  81 // Clean up windows used for displaying the view.
  82 bool DiagramView::OnClose(bool deleteWindow)
  83 {
  84   if (!GetDocument()->Close())
  85     return FALSE;
  86
  87   DiagramDocument *diagramDoc = (DiagramDocument *)GetDocument();
  88   diagramDoc->GetDiagram()->SetCanvas(NULL);
  89
  90   canvas->Clear();
  91   canvas->SetDiagram(NULL);
  92   canvas->view = NULL;
  93   canvas = NULL;
  94
  95   wxString s = wxTheApp->GetAppName();
  96   if (frame)
  97     frame->SetTitle(s);
  98
  99   SetFrame(NULL);
 100
 101   Activate(FALSE);
 102
 103   return TRUE;
 104 }
 105
 106 wxShape *DiagramView::FindSelectedShape(void)
 107 {
 108   DiagramDocument *doc = (DiagramDocument *)GetDocument();
 109   wxShape *theShape = NULL;
 110   wxNode *node = doc->GetDiagram()->GetShapeList()->First();
 111   while (node)
 112   {
 113     wxShape *eachShape = (wxShape *)node->Data();
 114     if ((eachShape->GetParent() == NULL) && eachShape->Selected())
 115     {
 116       theShape = eachShape;
 117       node = NULL;
 118     }
 119     else node = node->Next();
 120   }
 121   return theShape;
 122 }
 123
 124 void DiagramView::OnCut(wxCommandEvent& event)
 125 {
 126   DiagramDocument *doc = (DiagramDocument *)GetDocument();
 127
 128   wxShape *theShape = FindSelectedShape();
 129   if (theShape)
 130     doc->GetCommandProcessor()->Submit(new DiagramCommand("Cut", OGLEDIT_CUT, doc, NULL, 0.0, 0.0, TRUE, theShape));
 131 }
 132
 133 void DiagramView::OnChangeBackgroundColour(wxCommandEvent& event)
 134 {
 135       DiagramDocument *doc = (DiagramDocument *)GetDocument();
 136
 137       wxShape *theShape = FindSelectedShape();
 138       if (theShape)
 139       {
 140         wxColourData data;
 141         data.SetChooseFull(TRUE);
 142         data.SetColour(theShape->GetBrush()->GetColour());
 143
 144         wxColourDialog *dialog = new wxColourDialog(frame, &data);
 145         wxBrush *theBrush = NULL;
 146         if (dialog->ShowModal() == wxID_OK)
 147         {
 148           wxColourData retData = dialog->GetColourData();
 149           wxColour col = retData.GetColour();
 150           theBrush = wxTheBrushList->FindOrCreateBrush(col, wxSOLID);
 151         }
 152         dialog->Close();
 153
 154         if (theBrush)
 155           doc->GetCommandProcessor()->Submit(new DiagramCommand("Change colour", OGLEDIT_CHANGE_BACKGROUND_COLOUR, doc,
 156             theBrush, theShape));
 157       }
 158 }
 159
 160 void DiagramView::OnEditLabel(wxCommandEvent& event)
 161 {
 162       wxShape *theShape = FindSelectedShape();
 163       if (theShape)
 164       {
 165         wxString newLabel = wxGetTextFromUser("Enter new label", "Shape Label", ((MyEvtHandler *)theShape->GetEventHandler())->label);
 166         GetDocument()->GetCommandProcessor()->Submit(new DiagramCommand("Edit label", OGLEDIT_EDIT_LABEL, (DiagramDocument*) GetDocument(), newLabel, theShape));
 167       }
 168 }
 169
 170 /*
 171  * Window implementations
 172  */
 173
 174 BEGIN_EVENT_TABLE(MyCanvas, wxShapeCanvas)
 175     EVT_MOUSE_EVENTS(MyCanvas::OnMouseEvent)
 176     EVT_PAINT(MyCanvas::OnPaint)
 177 END_EVENT_TABLE()
 178
 179 // Define a constructor for my canvas
 180 MyCanvas::MyCanvas(wxView *v, wxWindow *parent, wxWindowID id, const wxPoint& pos,
 181     const wxSize& size, long style):
 182  wxShapeCanvas(parent, id, pos, size, style)
 183 {
 184   view = v;
 185 }
 186
 187 MyCanvas::~MyCanvas(void)
 188 {
 189 }
 190
 191 void MyCanvas::OnLeftClick(double x, double y, int keys)
 192 {
 193   EditorToolPalette *palette = wxGetApp().frame->palette;
 194   wxClassInfo *info = NULL;
 195   switch (palette->currentlySelected)
 196   {
 197     case PALETTE_TOOL1:
 198     {
 199       info = CLASSINFO(wxRectangleShape);
 200       break;
 201     }
 202     case PALETTE_TOOL2:
 203     {
 204       info = CLASSINFO(wxRoundedRectangleShape);
 205       break;
 206     }
 207     case PALETTE_TOOL3:
 208     {
 209       info = CLASSINFO(wxEllipseShape);
 210       break;
 211     }
 212     case PALETTE_TOOL4:
 213     {
 214       info = CLASSINFO(wxDiamondShape);
 215       break;
 216     }
 217     default:
 218       break;
 219   }
 220   if (info)
 221   {
 222     view->GetDocument()->GetCommandProcessor()->Submit(new DiagramCommand(info->GetClassName(), OGLEDIT_ADD_SHAPE, (DiagramDocument *)view->GetDocument(), info,
 223       x, y));
 224   }
 225 }
 226
 227 void MyCanvas::OnRightClick(double x, double y, int keys)
 228 {
 229 }
 230
 231 void MyCanvas::OnDragLeft(bool draw, double x, double y, int keys)
 232 {
 233 }
 234
 235 void MyCanvas::OnBeginDragLeft(double x, double y, int keys)
 236 {
 237 }
 238
 239 void MyCanvas::OnEndDragLeft(double x, double y, int keys)
 240 {
 241 }
 242
 243 void MyCanvas::OnDragRight(bool draw, double x, double y, int keys)
 244 {
 245 }
 246
 247 void MyCanvas::OnBeginDragRight(double x, double y, int keys)
 248 {
 249 }
 250
 251 void MyCanvas::OnEndDragRight(double x, double y, int keys)
 252 {
 253 }
 254
 255 void MyCanvas::OnMouseEvent(wxMouseEvent& event)
 256 {
 257     wxShapeCanvas::OnMouseEvent(event);
 258 }
 259
 260 void MyCanvas::OnPaint(wxPaintEvent& event)
 261 {
 262 //  if (GetDiagram())
 263     wxShapeCanvas::OnPaint(event);
 264 }